Explanation

AUKUS, is a trilateral security pact between Australia, the United Kingdom and the United States, announced on 15 September 2021 for the Indo-Pacific region.

Under the pact, the US and the UK will help Australia to acquire nuclear-powered submarines.

Explanation

On March 19, 2025, at 3:27 am, American astronauts Sunita Williams and Butch Wilmore  returned to earth after 9 months and 14 days from the Dragon spacecraft. 

Background:

Sunita Williams and Butch Wilmore took a week aboard Boeing's Starliner spacecraft on 5th June 2024, but due to technical glitches, their mission lasted 9 months (286 days).

NASA and SpaceX launched Crew-9 mission on 28 Sep, 2024 from Florida, USA.

The mission has two people on board and two empty seats to bring back astronauts Sunita Williams and Butch Wilmore, who have been stuck on the international Space Station (ISS).

Explanation

NASA and SpaceX launched Crew-9 mission on 28 Sep, 2024 from Florida, USA.

The mission has two people on board and two empty seats to bring back astronauts Sunita Williams and Butch Wilmore, who have been stuck on the international Space Station (ISS).

Additional Information

Both Sunita Williams and Butch Wilmore are American astronauts.

NASA is the space agency of the USA.

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Explanation

China launched the CR450, the fastest high-speed train, reaching 450 km/h in tests and 400 km/h commercially.

It improves on the CR400 Fuxing, featuring advanced technology for speed, energy efficiency, and passenger comfort.

The train supports China’s goal to expand its rail network to 70,000 km by 2035.

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Explanation

The Kartarpur Corridor was inaugurated on November 9, 2019.

The Kartarpur Corridor is a visa-free border crossing and religious corridor.

It connects the city of Dera Baba Nanak in India's Punjab state to the city of Narowal in Pakistan's Punjab province.

It facilitating pilgrimage for Sikh devotees to visit the Gurdwara Darbar Sahib in Kartarpur, Pakistan.